“I want you to carefully think about which matters are not relevant to the problem, and that you would like to keep entirely to yourself.” (You can talk freely about anything that is relevant to the problem.)
“In your normal waking state, of course there are topics that you would be very reluctant to discuss with me.” (In trance, you can easily discuss any topic.)
Another way of thinking about this process is that the client's concern, objection, or reluctance is completely acknowledged, at the same time that it is placed in a different context (place, time, or event) where it won't interfere with your outcome. Implications can also be delivered nonverbally, and since Erickson also made great use of that, it will the the topic of a second paper.